639492094

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{97}}^2\times {\mathrm{1999}}^1$

素因数の和:2212

約数の個数: 24

約数和(自身を含む): 1026756000

約数和(自身を除く): 387263906

約数列:

[1, 2, 17, 34, 97, 194, 1649, 1999, 3298, 3998, 9409, 18818, 33983, 67966, 159953, 193903, 319906, 387806, 3296351, 6592702, 18808591, 37617182, 319746047, 639492094]

約数ペア:

[(1, 639492094), (2, 319746047), (17, 37617182), (34, 18808591), (97, 6592702), (194, 3296351), (1649, 387806), (1999, 319906), (3298, 193903), (3998, 159953), (9409, 67966), (18818, 33983)]